linux-kernel - [PATCH 0/6] KEYS: asymmetric: tpm2_key

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240520184727.22038-1-jarkko@kernel.org>
Date: Mon, 20 May 2024 21:47:07 +0300
From: Jarkko Sakkinen <jarkko@...nel.org>
To: Herbert Xu <herbert@...dor.apana.org.au>
Cc: linux-integrity@...r.kernel.org,
	keyrings@...r.kernel.org,
	Andreas.Fuchs@...ineon.com,
	James Prestwood <prestwoj@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Jarkko Sakkinen <jarkko@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org (open list:CRYPTO API),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 0/6] KEYS: asymmetric: tpm2_key_rsa

## Overview

Introduce tpm2_key_rsa implementing asymmetric TPM RSA key. This key type
can be enabled with CONFIG_ASYMMETRIC_TPM2_KEY_RSA_SUBTYPE config option.
Carves groundwork for similar modules in future, such as tpm2_key_ecdsa.

## Testing

tpm2_createprimary --hierarchy o -G rsa2048 -c owner.txt
tpm2_evictcontrol -c owner.txt 0x81000001
tpm2_getcap handles-persistent
openssl genrsa -out private.pem 2048
tpm2_import -C 0x81000001 -G rsa -i private.pem -u key.pub -r key.priv
tpm2_encodeobject -C 0x81000001 -u key.pub -r key.priv -o key.priv.pem
openssl asn1parse -inform pem -in key.priv.pem -noout -out key.priv.der
serial=`cat key.priv.der | keyctl padd asymmetric tpm @u`
echo "abcdefg" > plaintext.txt
keyctl pkey_encrypt $serial 0 plaintext.txt enc=pkcs1 > encrypted.dat
keyctl pkey_decrypt $serial 0 encrypted.dat enc=pkcs1 > decrypted.dat
keyctl pkey_sign $serial 0 plaintext.txt enc=pkcs1 hash=sha256 > signed.dat
keyctl pkey_verify $serial 0 plaintext.txt signed.dat enc=pkcs1 hash=sha256

## References

- Derived from https://lore.kernel.org/all/20200518172704.29608-1-prestwoj@gmail.com/
- Last RFC: https://lore.kernel.org/linux-integrity/D1DMTJYL7TFC.3J3FM36K06ECD@kernel.org/T/#t

James Prestwood (1):
  keys: asymmetric: ASYMMETRIC_TPM2_KEY_RSA_SUBTYPE

Jarkko Sakkinen (5):
  crypto: rsa-pkcs1pad: export rsa1_asn_lookup()
  lib: Expand asn1_encode_integer() to variable size integers
  tpm: Export tpm2_load_context()
  KEYS: trusted: Move tpm2_key_decode() to the TPM driver
  tpm: tpm2_key: Extend parser to TPM_LoadableKey

 crypto/asymmetric_keys/Kconfig                |  16 +
 crypto/asymmetric_keys/Makefile               |   1 +
 crypto/asymmetric_keys/tpm2_key_rsa.c         | 726 ++++++++++++++++++
 crypto/rsa-pkcs1pad.c                         |  16 +-
 drivers/char/tpm/Kconfig                      |   1 +
 drivers/char/tpm/Makefile                     |   5 +
 drivers/char/tpm/tpm.h                        |   2 -
 drivers/char/tpm/tpm2-cmd.c                   |  77 ++
 drivers/char/tpm/tpm2-space.c                 |  61 --
 drivers/char/tpm/tpm2_key.c                   | 119 +++
 .../char/tpm}/tpm2key.asn1                    |   0
 include/crypto/rsa-pkcs1pad.h                 |  20 +
 include/crypto/tpm2_key.h                     |  35 +
 include/linux/asn1_encoder.h                  |   3 +-
 include/linux/tpm.h                           |   4 +
 lib/asn1_encoder.c                            | 185 ++---
 security/keys/trusted-keys/Makefile           |   2 -
 security/keys/trusted-keys/trusted_tpm2.c     | 130 +---
 18 files changed, 1138 insertions(+), 265 deletions(-)
 create mode 100644 crypto/asymmetric_keys/tpm2_key_rsa.c
 create mode 100644 drivers/char/tpm/tpm2_key.c
 rename {security/keys/trusted-keys => drivers/char/tpm}/tpm2key.asn1 (100%)
 create mode 100644 include/crypto/rsa-pkcs1pad.h
 create mode 100644 include/crypto/tpm2_key.h

-- 
2.45.1